Serial Protocol Analyzer
Freeware Serial Protocol Analyzer. Com Port Packet Sniffer and RS232 Data Monitor. The Serial analyzer in the Multi Channel oscilloscope software analyzes one or more serial signals and displays the transferred messages. It supports RS232 serial interfaces, as well as related interfaces like RS485, MIDI, DMX and other compatible buses. Figure 4: Serial analyzer displaying decoded serial data 'TiePie' transmitted in two directions.
Free Serial Port Analyzer
From CommFront Communications:Serial Bus Protocol Analyzer
Rs232 Protocol Analyzer
232Analyzer is an advanced serial port monitor, RS232 monitor, Rs232 protocol analyzer software, debugger,sniffer, it allows you to control, debug, monitor, sniff, test and analyze serial port activities with RS232/RS485/RS422/TTL converters. It allows communication logging (c/w timestamps) between serial devices using serial ports (with optional monitor/control cables and rs232/rs485/rs422/TTL converters), e.g. Modbus, PLC, SCADA.
Version 5.5 adds full signals (CTS, RTS, DTR, DSR, DCD, and RI) monitoring, auto COM port number detection. Commands can be repeatedly sent up to 999 times. Programmable buttons can now be looped until manually stopped.